Product Overview

The ABB 086339-001​ (also referenced as S86339-001) is a Micro Intell Sensor electronic interface unit belonging to ABB’s legacy Micro Intell family of smart field instrumentation interfaces, historically deployed in process plants originally engineered with ABB MasterPiece, Advant OCS, or Freelance 2000 automation systems. The ABB 086339-001​ functions as a local signal-conditioning and digital communication front-end that allows conventional analog field sensors—such as 4–20 mA or mV/V strain-gauge type pressure, differential pressure, level, or temperature transmitters—to be connected to ABB’s proprietary Intellibus (also referred to in legacy literature as S100 fieldbus / Micro Intell bus) for bidirectional digital communication of measured values, diagnostics, and configuration parameters. In effect, the ABB 086339-001​ “intelligent-izes” a standard analog transmitter, making its primary value, sensor status, and self-diagnostic information available to the control system without separate HART multiplexers or analog-only I/O cards.Physically, the ABB 086339-001​ is housed in a compact, typically IP65/NEMA 4X field-mountable or DIN-rail-mountable enclosure suitable for installation in junction boxes near the measurement point. It is powered from the Intellibus loop (typically 24 V DC derived) or from a local 24 V DC supply depending on the system architecture variant, and it drives a two-wire or four-wire connection to the host Intellibus master (an S100 I/O module or dedicated Micro Intell interface in the control cabinet). The ABB 086339-001​ performs linearization, zero/span adjustment in software (via ABB configuration tools such as CBF or MasterTool with the appropriate Micro Intell EDS / GSD equivalent), and provides sensor break/open detection. Although the Micro Intell product line has been largely superseded by Foundation Fieldbus H1, PROFIBUS PA, and HART-enabled I/O in modern ABB installations, the ABB 086339-001​ remains an important obtainable spare for maintaining legacy pulp & paper, power, and process plants where the original instrumentation architecture is still in service.

Technical Specifications

Product Model | 086339-001 (S86339-001)Manufacturer | ABB (ABB Automation Products / ABB Process Automation, formerly ASEA Brown Boveri Measurement & Analytics)Product Type | Micro Intell Sensor Interface / Smart Transmitter Coupler (Analog → Intellibus)Compatible Bus | ABB Micro Intell Bus (proprietary 2-wire digital communication over twisted pair; backward compatible with S100 Intellibus physical layer)Sensor Input Types | 4–20 mA (active transmitter loop powered or passive), 0–10 V DC, mV signals (depending on internal jumper/shunt configuration – verify against original plant documentation)Number of Input Channels | Typically 1 or 2 (most common: single 4–20 mA with HART passthrough not applicable – native Intellibus digitization)Communication Rate | Intellibus standard (typically 31.25 kbps or per Micro Intell spec; polled by master)Supply Voltage | 18–30 V DC (from Intellibus loop or local 24 V DC supply per system design)Current Consumption (from bus) | Approx. 20–40 mA (typical for Micro Intell sensor node)Isolation | Galvanic isolation between field input and Intellibus (typical 500 V AC working / 1500 V test per ABB Micro Intell design)Indicators | Power / Comms LED (green = powered, blinking = communicating, red = fault depending on firmware)Mounting | DIN rail (35 mm) or field enclosure (screw mount tabs)Operating Temperature | -20 … +60 °C (-4 … +140 °F)Storage Temperature | -40 … +85 °CHumidity (non-condensing) | 5 % – 95 % RHDimensions (approx.) | 90 mm × 45 mm × 75 mm (enclosed version) or PCB/module format depending on variantWeight | Approx. 150–200 gEnclosure Rating | IP20 (DIN version) / IP65 (field-housed version – confirm from original panel photo)Certifications | CE, possibly FM / CSA / ATEX for Intrinsic Safety when used with IS barrier (confirm per individual unit label)Configuration Method | ABB Micro Intell Configuration Software / CBF with S100 I/O device description

Main Features and Advantages

Digitizes legacy analog sensors for plant-wide access: The primary value of the ABB 086339-001​ is that it brings standard 4–20 mA or mV analog field transmitters onto the digital Intellibus network, allowing the control system to read not just the process variable but also sensor status (e.g., out-of-range, probe break, calibration due) and to perform remote re-ranging or damping configuration. This eliminates the need for separate analog input cards for each transmitter and provides diagnostic visibility comparable to a modern smart transmitter—without replacing the proven analog primary element.Compact field-mountable design: The ABB 086339-001​ is small enough to be installed in a local junction box adjacent to the transmitter, minimizing the length of unshielded analog runs that could otherwise pick up EMI. By digitizing at the point of measurement and transmitting digitally back to the S100 / Advant rack, the ABB 086339-001​ improves signal integrity in electrically noisy environments such as pulp & paper machine rooms or power plant turbine decks.Galvanic isolation and sensor protection: Input circuits on the ABB 086339-001​ are galvanically isolated from the Intellibus communication pair, protecting both the field instrument and the control system backplane from ground loops and transient overvoltages. Open-circuit and short-circuit detection on the sensor loop is reported as a distinct status bit to the host, aiding rapid fault isolation during troubleshooting.Seamless S100 / Micro Intell system integration: When the ABB 086339-001​ is wired to a Micro Intell master port (typically via an S100 I/O module with Intellibus master capability or a dedicated Micro Intell interface unit), it auto-enumerates on the bus. The host controller sees it as a standard Intellibus sensor node with a predefined data structure (PV, status, unit, range) that can be mapped directly into process tags in the control program. No custom driver development is required for systems already using Micro Intell devices.Lifecycle spare for maintained legacy assets: Although the Micro Intell family is discontinued, the ABB 086339-001​ continues to be sourced through specialized refurbishment channels. Matching the exact catalog number 086339-001​ (including any suffix variant visible on the unit label) ensures compatibility with the existing Intellibus node address assignment and parameter set stored in the control system archive, avoiding re-commissioning or re-ranging in the field.